Short info: Grandstream GDS3705 - IP Intercom Station - Wired - 10/100 Ethernet Group Integrated Systems & Automation Manufacturer Grandstream Part No. GDS3705 Model GDS3705 EAN/UPC 6947273702511. No. GDS3705 Model GDS3705 EAN/UPC 6947273702511 Key Features Product Type IP Intercom Station Power Source Power Adapter, PoE Connectivity Wired - 10/100 Ethernet Input Type 13 Buttons Dimensions (Width x Depth x Height) 8 cm x 3.6 cm x 17.3 cm Detailed Details General Product Type IP Intercom Station Power Source Power Adapter, PoE Control Unit Number of Buttons 13 Internet of Things (IoT) Interfaces LAN/Power 2 x Relay Output Wiegand Serial (RS-485) 2 x Alarm Input Miscellaneous Supplied Accessories Mounting Bracket, Remote key fob, cover frame, drilling template, 3 rubber gaskets, 12 screws, 6 anchors, 4 tamper-proof screws, tamper-proof Allen key, Wiegand cable, RFID card Product material Metal Encryption algorithm MD5, TLS, 256-bit AES Rated voltage GS.